[viiralvx]

A lot of ex-Hubbers went to Shopify. Additionally, a lot of upstream commits to Rails occurred from things pulled out of GitHub. GitHub has (had?) an entire team dedicated to Ruby and Rails and performance and optimizations/improvements

[ansonhoyt]

This surprised me, as I knew of several prominent GitHub folks contributing to Rails, but when I looked [1], they're all at Shopify. TIL!

[1] https://github.com/rails/rails/milestones/7.1.0